Small grocery stores are going bankrupt, larger chains now all are becoming food conglomerates who also own the point of sale - so called "private label" is noted as a huge threat in the shareholder reports of traditionally large food companies - go to a whole foods, aside from a few high profile products like CocaCola its all in-house brand products

What kind of margin are we talking? e.g. Walmart groceries? I can't imagine it being >5%